生物强化活性滤池低温运行效果分析  

Study on the Effect of Biologically-enhanced Active Filter under Low Temperature

作　　者：杨弦[1] 吕锡武[1] 

机构地区：[1]东南大学环境科学与工程系,江苏南京210096

出　　处：《净水技术》2005年第5期7-11,共5页Water Purification Technology

基　　金：国家"十五"重大科技专项(2002YN-03)

摘　　要：以黄浦江水为处理对象,通过两种生物强化活性滤池与常规砂滤池的对比试验,比较低温条件下不同工艺对微污染水源中有机物和氨氮等的去除效果,阐述其去除规律。结果表明:①生物强化活性滤池的运行效果均优于砂滤池,其填料上吸附的生物量可达砂滤池的近10倍;②水温低至8℃以下,砂滤柱NO2--N去除率均为负值,出现NO2--N累积现象,最高时达到0.28mg/L,随着水温继续降低,生物强化活性滤池出水NO2--N也升高,最高时出水NO2--N分别是进水的200%和400%;③反冲洗后,生物强化活性滤池能在短时间内恢复正常运行。Two biologically-enhanced active filters were operated in the parallel experiment with sand filter , to compare the removal effect of CODMn, UV254, NH4^＋-N and NO2^--N, and to analyze the rules. The removal rates of biologically-enhanced active filters are higher than sand filter, with biomass on the surface of them ten times of that of sand filter; as the temperature falls below 8℃, NO2^- -N in the outflow of sand filter increases, with the highest value of 0.28mg/L; as the temperature keeps on falling, NO2^--N in the outflow of biologically-enhanced active filters increases, equal to 200% and 400% of the inflow. After backwashing, the removal rates can grow up to the normal level soon.

关 键 词：生物强化活性滤池 微污染源水 强化过滤 生物量 反冲洗 活性滤池 生物强化 效果分析 低温运行 微污染水源 砂滤池 对比试验 去除效果 低温条件 

分 类 号：TU991.22[建筑科学—市政工程] X172[环境科学与工程—环境科学]